CN211147567U - Ultra-small diameter stress direction oil pipe damage detection system - Google Patents
Ultra-small diameter stress direction oil pipe damage detection system Download PDFInfo
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- CN211147567U CN211147567U CN201921901187.7U CN201921901187U CN211147567U CN 211147567 U CN211147567 U CN 211147567U CN 201921901187 U CN201921901187 U CN 201921901187U CN 211147567 U CN211147567 U CN 211147567U
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Abstract
The utility model provides a super minor diameter stress direction oil pipe damages detecting system, relates to the check out test set technical field, and it includes imaging sensor, high-speed downhole remote measuring system and stratum stress direction measurement system, and imaging sensor and stratum stress direction measurement system all are connected with high-speed downhole remote measuring system through the wire, and high-speed downhole remote measuring system passes through the wire and is connected with ground data acquisition processing system, and ground data acquisition processing system passes through the wire and explains report output connection with data. The system for detecting the damage of the oil pipe in the direction of the ultra-small diameter stress is designed aiming at the serious dislocation and deformation of the casing pipe caused by the action of the stratum stress, has the characteristic of ultra-small diameter, and can accurately analyze and predict the stratum stress direction of the sleeve damage position and the deformation condition of the oil pipe in the oil pipe.
Description
The technical field is as follows:
the utility model relates to a check out test set technical field, concretely relates to super minor diameter stress direction oil pipe damages detecting system.
Background art:
with the development of the petroleum industry, most of domestic oil fields belong to the middle and later stages of oil field development at present, the damage of oil-water well casings is very serious, even regional casing damage occurs, the production is seriously influenced, and no equipment can meet the detection device of oil-water well casings with different diameters at present, so that the casing damage phenomenon of the oil-water well casings cannot be prevented.
The utility model has the following contents:
the utility model aims at overcoming the weak point that above-mentioned prior art exists, and provide a super minor diameter stress direction oil pipe and damage detecting system, it provides the decision-making foundation for oil field cover decreases prevention and control measure.
In order to solve the problem existing in the background art, the utility model adopts the following technical scheme: the high-speed underground remote measuring system is connected with a ground data acquisition and processing system through a lead, and the ground data acquisition and processing system is connected with data interpretation report output through a lead.
The imaging sensor outputs the oil jacket denaturation measurement to a high-speed downhole telemetry system.
And the formation stress direction measuring system outputs the formation stress direction measurement to a high-speed downhole telemetering system.
And the high-speed downhole telemetering system transmits and outputs the data codes to a ground data acquisition and processing system.
The imaging sensor is provided with a detection arm.
The imaging sensor is a differential inductive displacement sensor.
And the imaging sensor is provided with a motor-driven centralizer.
The outer diameter of the imaging sensor is 36mm or 28 mm.
The beneficial effects of the utility model are that simple structure, convenient to use to the sleeve pipe because stratum stress action causes seriously wrong section, deformation, has designed super minor diameter measurement system, has super minor diameter's characteristics, can carry out accurate analysis and prediction to stratum stress direction, the oil pipe's of cover loss position deformation condition in oil pipe.
Description of the drawings:
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is the structure diagram of the imaging sensor of the present invention.
The specific implementation mode is as follows:
referring to the drawings, the present invention specifically adopts the following embodiments: the high-speed underground remote measuring system is connected with a ground data acquisition and processing system through a lead, and the ground data acquisition and processing system is connected with data interpretation report output through a lead. The imaging sensor outputs the oil jacket denaturation measurement to a high-speed downhole telemetry system. And the formation stress direction measuring system outputs the formation stress direction measurement to a high-speed downhole telemetering system. And the high-speed downhole telemetering system transmits and outputs the data codes to a ground data acquisition and processing system. The imaging sensor is provided with a detection arm 1. The imaging sensor is a differential inductive displacement sensor. And the imaging sensor is provided with a motor-driven centralizer. The outer diameter of the imaging sensor is 36mm or 28 mm.
When the system is used, the damage imaging sensors of the casing and the oil pipe adopt a mechanical contact type to measure, the oil casing imaging sensor adopts a differential inductive displacement sensor, when the detection arm 1 is opened to different sizes, the imaging sensor driven by the detection arm 1 also forms follow-up, the inductance of the differential inductive sensor changes, and the change of the differential inductive sensor is a differential mode. The imaging sensor sends out a driving signal, the driving signal is selected by the multi-way switch and is added to the imaging sensor, when the position armature in the imaging sensor is at different positions, the signal at the output end of the imaging sensor changes correspondingly, the signal is processed by the signal receiving circuit of the imaging sensor to obtain the required signal, and the corrosion and deformation conditions of the oil pipe or the casing pipe can be presented in a three-dimensional form. The imaging sensor has a good righting effect due to the centralizer driven by the motor; the imaging sensor has high measurement accuracy, compact structure and convenient maintenance.
The diameter of the measuring channel is reduced seriously aiming at the conditions that the sleeve and the oil pipe with serious casing damage are seriously twisted, broken, bent and the like, particularly the oil pipe or the sleeve needs to be measured under the condition, and a conventional testing instrument (the outer diameter is more than 43 mm) cannot reach a target position at all to detect the oil pipe or the sleeve. The imaging sensor is a contact type well arm imaging instrument with the smallest outer diameter size (two outer diameter sizes: 36mm and 28mm respectively) in domestic and international same industries at present, and the oil pipe or the casing can be detected by taking the oil pipe as a channel and descending to a target position through extremely high performance. The formation stress direction measuring system configured by the system can accurately evaluate the formation stress direction acting on the casing. The position of the casing damage part can be finally indicated through a ground data acquisition and processing system and a high-speed downhole remote measuring system, the well body inclination angle and the inclination position information can be provided, and the transverse and longitudinal cracks of the casing can be accurately measured. Under the support of imaging software, a three-dimensional imaging graph and an imaging interpretation result graph of casing deformation can be drawn, more measurement data can be provided for workover engineering technicians, and the condition of the underground oil pipe or the casing can be further known.
The above measurement parameters include: the method comprises the steps of oil pipe deformation and depth, casing pipe type and depth, casing pipe deformation direction and bending, oil pipe deformation direction prediction and judgment, and inspection of a perforated layer section.
The imaging sensor breaks through the appearance specification of the pipeline multi-arm imager to the limit, and fills the technical blank of the world. In narrow space and length, the displacement coefficient amplification structure of the small-size imaging sensor is realized, the pipeline can be measured with high precision, and the limit of the installation space of the sensor in the conventional multi-arm imager is broken through.
The imaging sensor displacement coefficient amplification structure realizes high-resolution measurement under the condition of small displacement. Meanwhile, the device can be selectively and hard-linked with a centering device, so that the flexibility of the imaging sensor on the requirement of the length of the instrument in the process of going down the well is improved.
The system improves the passing performance of the instrument, and the imaging sensor can smoothly pass through a deformed pipeline with the aperture of more than 30mm in a deformation space which cannot be passed by an outer diameter logging instrument with the diameter of more than 73mm conventionally, so that the deformation point/section of the pipeline is measured.
Even if the outer diameter and the length of the imaging sensor are reduced to 28mm and 1.38m, the measurement precision is kept through the innovative displacement coefficient amplification structure of the small-size imaging sensor, and the limit of reaching the 1cm displacement measurement range on a 4cm sensor is broken through.
In conclusion, the system for detecting the damage of the oil pipe in the ultra-small diameter stress direction is simple in structure and convenient to use, and the ultra-small diameter measuring system is designed aiming at serious dislocation and deformation of the casing pipe caused by the action of the formation stress, has the characteristic of ultra-small diameter, and can accurately analyze and predict the formation stress direction of the sleeve damage position and the deformation condition of the oil pipe in the oil pipe.
Claims (5)
1. The utility model provides an ultra-small diameter stress direction oil pipe damages detecting system which characterized in that: the system comprises an imaging sensor, a high-speed underground remote measuring system and a stratum stress direction measuring system, wherein the imaging sensor and the stratum stress direction measuring system are connected with the high-speed underground remote measuring system through leads; a detection arm (1) is arranged on the imaging sensor; the imaging sensor is provided with a motor-driven centralizer; the outer diameter of the imaging sensor is 36mm or 28 mm.
2. The system of claim 1 for detecting damage to an ultra small diameter stress direction oil pipe, wherein: the imaging sensor outputs the oil jacket denaturation measurement to a high-speed downhole telemetry system.
3. The system of claim 1 for detecting damage to an ultra small diameter stress direction oil pipe, wherein: and the formation stress direction measuring system outputs the formation stress direction measurement to a high-speed downhole telemetering system.
4. The system of claim 1 for detecting damage to an ultra small diameter stress direction oil pipe, wherein: and the high-speed downhole telemetering system transmits and outputs the data codes to a ground data acquisition and processing system.
5. The system of claim 1 for detecting damage to an ultra small diameter stress direction oil pipe, wherein: the imaging sensor is a differential inductive displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921901187.7U CN211147567U (en) | 2019-11-06 | 2019-11-06 | Ultra-small diameter stress direction oil pipe damage detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921901187.7U CN211147567U (en) | 2019-11-06 | 2019-11-06 | Ultra-small diameter stress direction oil pipe damage detection system |
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| Publication Number | Publication Date |
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| CN211147567U true CN211147567U (en) | 2020-07-31 |
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| CN201921901187.7U Active CN211147567U (en) | 2019-11-06 | 2019-11-06 | Ultra-small diameter stress direction oil pipe damage detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113052374A (en) * | 2021-03-18 | 2021-06-29 | 中国石油大学(华东) | Data-driven intelligent prediction method for casing loss depth of oil well |
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2019
- 2019-11-06 CN CN201921901187.7U patent/CN211147567U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113052374A (en) * | 2021-03-18 | 2021-06-29 | 中国石油大学(华东) | Data-driven intelligent prediction method for casing loss depth of oil well |
| CN113052374B (en) * | 2021-03-18 | 2022-06-21 | 中国石油大学(华东) | Data-driven intelligent prediction method for casing loss depth of oil well |
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